[stllookn]

Here are the numbers on my '68 Longhorn...the ones you can see with the front clip removed. The same place as on all my trucks. Frame part numbers are on the passenger side and a second set of VIN #s are stamped on the top of the frame just under the cab as I recall.

The first 4 digits (CE24) of the VIN are missing so it starts with the year "8" (1968) and where the truck was mfg'd. ("Z" - Fremont), then the production number... 8Z161238.

That long number you have sounds like the part number for the frame rail and mine is stamped on the SIDE of the frame not the top like the VIN. My '72 Longhorn has a more complete VIN stamped on top but it too is somewhat cryptic in that it has the first three digits missing ie ???42Z1116176. They must have been creative with their stamping systems depending upon when and who stamped them. It sounds like they just left off your production number...just stamp them to match your VIN and be done with it. I think Harbor Freight has an inexpensive stamping set.

Bobthecop was saying CA ties the title to the frame...in WA it is tied to the cab but on inspection they will/may check the frame too. I purchased a cab from a reputable wrecking yard and the guy just gave me a receipt on his letterhead with the VIN# on it...along with the cab and vin plate, of course.